# Which battery for the Volkswagen Passat B6 (3C, 2005-2011)?

> Volkswagen Passat B6 3C battery: AGM 70 Ah with Start-Stop (Varta A7), conventional 74 Ah without (Varta E11). By engine and number plate.

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- **Last update**: 2026-11-11

Passat B6 (3C2)

- Passat B6 Variant (3C5)

[← All generations of the Volkswagen Passat](https://bateriasonline.es/en/vw-passat-battery)
Car battery by model
With Start-Stop, the Volkswagen Passat B6 (3C, 2005-2011) always takes a battery like the Varta A7: AGM, 70 Ah and 760 A, in case size L3. Versions without Start-Stop take the Varta E11 (conventional, 74 Ah and 680 A); the table shows the battery for each engine.
- 2005-2011
- 17 engines
- AGM · conventional
- Case L3

[Check with your number plate](https://bateriasonline.es/en/battery-finder-plate-or-vin) We show you only the batteries that fit your exact version.

## Recommended batteries for the Volkswagen Passat B6 3C

 For Start-Stop versions
[Varta A7](https://bateriasonline.es/en/varta-a7)
AGM 70 Ah · 760 A (EN)
Case L3 · 278 × 175 × 190 mm · + right
Recommended for 7 of 17 engines
[See price and specs Varta A7 ](https://bateriasonline.es/en/varta-a7)
 For versions without Start-Stop
[Varta E11](https://bateriasonline.es/en/varta-e11)
conventional 74 Ah · 680 A (EN)
Case L3 · 278 × 175 × 190 mm · + right
Recommended for 8 of 17 engines
[See price and specs Varta E11 ](https://bateriasonline.es/en/varta-e11)
 For versions without Start-Stop
[Varta D24](https://bateriasonline.es/en/varta-d24)
conventional 60 Ah · 540 A (EN)
Case L2 · 242 × 175 × 190 mm · + right
Recommended for 8 of 17 engines
[See price and specs Varta D24 ](https://bateriasonline.es/en/varta-d24)
 Equivalent to the Varta E11
[Exide EA770](https://bateriasonline.es/en/exide-ea770)
conventional 77 Ah · 760 A (EN)
Case L3 · 278 × 175 × 190 mm · + right
Same dimensions and terminal layout, the same or higher capacity and the same or better technology
[See price and specs Exide EA770 ](https://bateriasonline.es/en/exide-ea770)

## Volkswagen Passat B6 3C battery by engine

Each row groups the versions that share an engine. When an engine lists more than one battery, it is because the battery changes with the version or equipment: your number plate settles it.

| Engine | Power | Years | Fuel | With Start-Stop | Without Start-Stop |
|---|---|---|---|---|---|
| 1.4 TSICAXA | 90 kW (122 hp) | 2007-2010 | Petrol | Varta A7 AGM · 70 Ah · 760 A · L3 · + right | Varta D24 conventional · 60 Ah · 540 A · L2 · + right Varta C22 conventional · 52 Ah · 470 A · L1 · + right |
| 1.4 TSI EcoFuelCDGA | 110 kW (150 hp) | 2009-2010 | Gas (CNG/LPG) | — | Varta D24 conventional · 60 Ah · 540 A · L2 · + right |
| 1.6BSE, BSF | 75 kW (102 hp) | 2005-2010 | Petrol | — | Varta D24 conventional · 60 Ah · 540 A · L2 · + right Varta C22 conventional · 52 Ah · 470 A · L1 · + right |
| 1.6 FSIBLF | 85 kW (115 hp) | 2005-2008 | Petrol | — | Varta D24 conventional · 60 Ah · 540 A · L2 · + right Varta C22 conventional · 52 Ah · 470 A · L1 · + right |
| 1.6 TDICAYC | 77 kW (105 hp) | 2009-2010 | Diesel | Varta A7 AGM · 70 Ah · 760 A · L3 · + right | — |
| 1.8 TSIBZB, CDAA, CDAB, CGYA | 112-118 kW (152-160 hp) | 2007-2011 | Petrol | — | Varta D24 conventional · 60 Ah · 540 A · L2 · + right |
| 1.9 TDIBKC, BLS, BXE | 77 kW (105 hp) | 2005-2010 | Diesel | Varta A7 AGM · 70 Ah · 760 A · L3 · + right | Varta E11 conventional · 74 Ah · 680 A · L3 · + right |
| 2.0 BlueTDICBAC | 105 kW (143 hp) | 2009-2010 | Diesel | Varta A7 AGM · 70 Ah · 760 A · L3 · + right | Varta E11 conventional · 74 Ah · 680 A · L3 · + right |
| 2.0 FSIBLR, BLY, BVY, BVZ, CCTB | 110-125 kW (150-170 hp) | from 2005 | Petrol | — | Varta D24 conventional · 60 Ah · 540 A · L2 · + right |
| 2.0 FSI 4motionBLX, BLY, BVX | 110 kW (150 hp) | 2005-2010 | Petrol | — | Varta D24 conventional · 60 Ah · 540 A · L2 · + right |
| 2.0 TDIBMA, BMP, BMR, BUZ, BVE, BWV… | 81-125 kW (110-170 hp) | 2005-2010 | Diesel | Varta A7 AGM · 70 Ah · 760 A · L3 · + right | Varta E11 conventional · 74 Ah · 680 A · L3 · + right |
| 2.0 TDI 4motionBMP, CBBB | 103-125 kW (140-170 hp) | 2005-2010 | Diesel | — | Varta E11 conventional · 74 Ah · 680 A · L3 · + right |
| 2.0 TDI 16VBKP, CBAB | 103 kW (140 hp) | 2005-2010 | Diesel | Varta A7 AGM · 70 Ah · 760 A · L3 · + right | Varta E11 conventional · 74 Ah · 680 A · L3 · + right |
| 2.0 TDI 16V 4motionBKP, CBAB | 103 kW (140 hp) | 2005-2010 | Diesel | Varta A7 AGM · 70 Ah · 760 A · L3 · + right | Varta E11 conventional · 74 Ah · 680 A · L3 · + right |
| 2.0 TFSIAXX, BPY, BWA, CAWB, CBFA, CCTA… | 147 kW (200 hp) | 2005-2010 | Petrol | — | Varta D24 conventional · 60 Ah · 540 A · L2 · + right |
| 3.2 FSI 4motionAXZ | 184 kW (250 hp) | 2005-2010 | Petrol | — | Varta E11 conventional · 74 Ah · 680 A · L3 · + right |
| 3.6 R36 4motionBWS | 220 kW (300 hp) | 2007-2010 | Petrol | — | Varta E11 conventional · 74 Ah · 680 A · L3 · + right |

With Start-Stop: versions with automatic engine stop-start, or that leave the factory with an EFB or AGM battery. Ah = capacity; A = cold cranking current (EN standard); + right/+ left = side of the positive terminal. Under each engine you will find its engine codes, handy for identifying your version.

## What you should know about the Volkswagen Passat B6 3C

This page covers Passat B6 (3C2) and Passat B6 Variant (3C5): 17 engines in the table, petrol (9), diesel (7) and gas (CNG/LPG) (1). Only part of the range has Start-Stop (7 of 17 engines): those versions need AGM, the rest a conventional battery. The usual case size is L3 (278 × 175 × 190 mm).
- Model fact: the Volkswagen Passat B6 3C mainly uses case sizes L3 (278 × 175 × 190 mm), L2 (242 × 175 × 190 mm) and L1 (207 × 175 × 190 mm). A battery of a different size will not sit securely in the car’s battery tray.
- General tip: if your car came from the factory with an AGM battery, replace it with another AGM; if it has an EFB, with an EFB or an AGM. A conventional battery in a Start-Stop car wears out much sooner and the system may stop working.
- General tip: on Seat, Volkswagen and Audi models with Start-Stop, the new battery is usually coded into the energy management system with a diagnostic tool, so that the alternator charges it according to its type and capacity.
- General tip: mid-size and executive saloons keep drawing power while parked (alarm, telematics, comfort systems). If the car goes weeks without being driven, a battery maintainer will extend the life of the battery.

## Frequently asked questions

### Which battery does the Volkswagen Passat B6 (3C, 2005-2011) take?

With Start-Stop, the Volkswagen Passat B6 (3C, 2005-2011) always takes a battery like the Varta A7: AGM, 70 Ah and 760 A, in case size L3. Versions without Start-Stop take the Varta E11 (conventional, 74 Ah and 680 A); the table shows the battery for each engine.

### Can I fit a standard battery in my Volkswagen Passat B6 with Start-Stop?

It is not recommended. If it came from the factory with an AGM battery, such as the Varta A7, the replacement should also be AGM: with an EFB or a conventional battery it wears out sooner and the Start-Stop system may stop working.

### What size battery does the Volkswagen Passat B6 take?

Depending on the engine, the Volkswagen Passat B6 3C uses these case sizes: L3 (278 × 175 × 190 mm), L2 (242 × 175 × 190 mm) and L1 (207 × 175 × 190 mm); dimensions are length × width × height. Also check that the positive terminal is on the same side as on your current battery.

### Does the Varta A7 fit the Volkswagen Passat B6 3C?

Yes, it is one of the recommended batteries for the Volkswagen Passat B6 3C with the 1.4 TSI, 1.6 TDI, 1.9 TDI, 2.0 BlueTDI, 2.0 TDI and 2.0 TDI 16V engines (7 of the 17 engines in the table). For the others, check their row in the table or search by number plate.

### How do I find out exactly which battery my Volkswagen Passat B6 takes?

Enter your number plate or chassis number (VIN) in our battery finder: it identifies the exact engine and shows you only the compatible batteries. You can also check the label on your current battery: capacity (Ah), cold cranking (A, EN standard) and technology (AGM, EFB or conventional).

## Other Volkswagen Passat generations

- [ Volkswagen Passat B8 (3G) from 2014 ](https://bateriasonline.es/en/vw-passat-battery#gen-vw-passat-b8)
- [ Volkswagen Passat B7 2010-2015 ](https://bateriasonline.es/en/vw-passat-battery#gen-vw-passat-b7)
- [ Volkswagen Passat B5 (3B) 1996-2005 ](https://bateriasonline.es/en/vw-passat-battery#gen-vw-passat-b5)
- [Volkswagen Passat B3/B4 1988-1997 ](https://bateriasonline.es/en/vw-passat-battery#gen-vw-passat-b4)

## More information

- [Volkswagen Passat battery: every generation](https://bateriasonline.es/en/vw-passat-battery)
- [Car battery sizes: L1-L6, LB1-LB5, B and D (Asian) cases](https://bateriasonline.es/en/car-battery-sizes-l-lb-b-d-cases)
- [Varta A7 (formerly E39): what changed and equivalents](https://bateriasonline.es/en/varta-a7-e39-agm-battery-equivalents)
- [Varta, Bosch, Exide and Tudor car battery equivalents table](https://bateriasonline.es/en/varta-bosch-exide-tudor-car-battery-equivalents)
- [Start-Stop batteries (AGM and EFB)](https://bateriasonline.es/en/start-stop-batteries-agm-efb)
- [Car batteries](https://bateriasonline.es/en/car-batteries)
- [L3 car batteries](https://bateriasonline.es/en/l3-car-batteries)
- [What battery does my car need? Guide by model](https://bateriasonline.es/en/car-battery-by-model)

Updated: 1 November 2026 · Source: battery application data by engine (KType TecDoc), the same data our number plate search uses, plus the datasheet of each battery.

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*bateriasonline.es — Batteries and accessories · 2026-11-11*